{"Id":"902249eb-87cb-4c01-8da7-17675d743cd7","Tags":["WinFlash64.sys"],"Verified":"TRUE","Author":"Michael Haag","Created":"2023-01-09","MitreID":"T1068","Category":"vulnerable driver","Commands":{"Command":"sc.exe create WinFlash64.sys binPath=C:\\windows\\temp\\WinFlash64.sys type=kernel && sc.exe start WinFlash64.sys","Description":"","OperatingSystem":"Windows 10","Privileges":"kernel","Usecase":"Elevate privileges"},"Resources":["https://github.com/eclypsium/Screwed-Drivers/blob/master/DRIVERS.md"],"Detection":[],"Acknowledgement":{"Handle":"","Person":""},"KnownVulnerableSamples":[{"Authentihash":{"MD5":"9fd32632e404f7d009ffe1ed34364539","SHA1":"da21f5889f8374c3961856d681adec3d663d2964","SHA256":"f2b51fbeead17f5ee34d5b4a3a83c848fb76f8f0e80769212e137a7aa539a3bc"},"Company":"","Copyright":"","CreationTimestamp":"2007-01-04 21:39:31","Date":"","Description":"","ExportedFunctions":"","FileVersion":"","Filename":"WinFlash64.sys","ImportedFunctions":["IoDeleteDevice","RtlFreeUnicodeString","IoCreateSymbolicLink","IoCreateDevice","RtlAnsiStringToUnicodeString","RtlInitString","IofCompleteRequest","MmMapLockedPages","IoDeleteSymbolicLink","RtlInitUnicodeString","ExFreePoolWithTag","ExAllocatePoolWithTag","MmUnmapIoSpace","MmMapIoSpace","KeBugCheckEx"],"Imports":["ntoskrnl.exe"],"InternalName":"","MD5":"a4fda97f452b8f8705695a729f5969f7","MachineType":"AMD64","MagicHeader":"50 45 0 0","OriginalFilename":"","Product":"","ProductVersion":"","Publisher":"","RichPEHeaderHash":{"MD5":"f611e8b47daf79029d2e777e3071d939","SHA1":"2dc185768c738521fb43db6d6b100bb04d43177f","SHA256":"66f092383abb8b873a957d01b5079e4f2b52a63770dcf68fff59410500f5974f"},"SHA1":"8183a341ba6c3ce1948bf9be49ab5320e0ee324d","SHA256":"677c0b1add3990fad51f492553d3533115c50a242a919437ccb145943011d2bf","Sections":{".text":{"Entropy":6.132176234707054,"Virtual Size":"0xa2a"},".rdata":{"Entropy":4.239377609592193,"Virtual Size":"0x17c"},".data":{"Entropy":0.4917211838342579,"Virtual Size":"0x120"},".pdata":{"Entropy":3.2669361989419348,"Virtual Size":"0x78"},"INIT":{"Entropy":4.880215733396522,"Virtual Size":"0x262"}},"Signature":["Phoenix Technology Ltd.","VeriSign Class 3 Code Signing 2004 CA","VeriSign Class 3 Public Primary CA"],"Signatures":[{"CertificatesInfo":"","SignerInfo":"","Certificates":[{"Subject":"C=US, O=VeriSign, Inc., CN=VeriSign Time Stamping Services CA","ValidFrom":"2003-12-04 00:00:00","ValidTo":"2013-12-03 23:59:59","Signature":"4a6bf9ea58c2441c318979992b96bf82ac01d61c4ccdb08a586edf0829a35ec8ca9313e704520def47272f0038b0e4c9934e9ad4226215f73f37214f703180f18b3887b3e8e89700fecf55964e24d2a9274e7aaeb76141f32acee7c9d95eddbb2b853eb59db5d9e157ffbeb4c57ef5cf0c9ef097fe2bd33b521b1b3827f73f4a","SignatureAlgorithmOID":"1.2.840.113549.1.1.5","IsCertificateAuthority":true,"SerialNumber":"47bf1995df8d524643f7db6d480d31a4","Version":3,"CertificateType":"CA","IsCodeSigning":false,"IsCA":true,"TBS":{"MD5":"518d2ea8a21e879c942d504824ac211c","SHA1":"21ce87d827077e61abddf2beba69fde5432ea031","SHA256":"1ec3b4f02e03930a470020e0e48d24b84678bb558f46182888d870541f5e25c7","SHA384":"53e346bbde23779a5d116cc9d86fdd71c97b1f1b343439f8a11aa1d3c87af63864bb8488a5aeb2d0c26a6a1e0b15f03f"}},{"Subject":"C=US, O=VeriSign, Inc., CN=VeriSign Time Stamping Services Signer","ValidFrom":"2003-12-04 00:00:00","ValidTo":"2008-12-03 23:59:59","Signature":"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","SignatureAlgorithmOID":"1.2.840.113549.1.1.5","IsCertificateAuthority":false,"SerialNumber":"0de92bf0d4d82988183205095e9a7688","Version":3,"CertificateType":"Intermediate","IsCodeSigning":false,"IsCA":false,"TBS":{"MD5":"45c204b8a20f6abb0188d2d38a3fb0c9","SHA1":"cdf3a3c5c2eda4c29621f30fd3154f9f8c765739","SHA256":"e32839dddc0f4ed2474efaf37f59d46db400c700fd19533cb0895a111124bc77","SHA384":"ee9c75832cb252218b3201619852209df490d2ef7a5f7a28afdb37f1c1dd56f4604898838e558f615b1c798d4a488223"}},{"Subject":"C=US, O=VeriSign, Inc., OU=VeriSign Trust Network, OU=Terms of use at https://www.verisign.com/rpa (c)04, CN=VeriSign Class 3 Code Signing 2004 CA","ValidFrom":"2004-07-16 00:00:00","ValidTo":"2014-07-15 23:59:59","Signature":"ae3a17b84a7b55fa6455ec40a4ed494190999c89bcaf2e1dca7823f91c190f7feb68bc32d98838dedc3fd389b43fb18296f1a45abaed2e26d3de7c016e000a00a4069211480940f91c1879672324e0bbd5e150ae1bf50edde02e81cd80a36c524f9175558aba22f2d2ea4175882f63557d1e545a9559cad93481c05f5ef67ab5","SignatureAlgorithmOID":"1.2.840.113549.1.1.5","IsCertificateAuthority":true,"SerialNumber":"4191a15a3978dfcf496566381d4c75c2","Version":3,"CertificateType":"CA","IsCodeSigning":true,"IsCA":true,"TBS":{"MD5":"41011f8d0e7c7a6408334ca387914c61","SHA1":"c7fc1727f5b75a6421a1f95c73bbdb23580c48e5","SHA256":"88dd3952638ee82738c03168e6fd863fe4eab1059ee5e2926ad8cb587c255dc0","SHA384":"a00aa5ed457c41e37967882644d63366bae014f03a986576d8514164d7027acf7d0b5e03d764db2558f60db148954459"}},{"Subject":"C=US, O=VeriSign, Inc., OU=Class 3 Public Primary Certification Authority","ValidFrom":"2006-05-23 17:01:29","ValidTo":"2016-05-23 17:11:29","Signature":"01e446b33b457f7513877e5f43de468ecb8abdb64741bccccc7491d8ce395195a4a6b547c0efd2da7b8f5711f4328c7ccd3fee42da04214af7c843884a6f5cca14fc4bd19f4cbdd4556ecc02be0da6888f8609baa425bde8b0f0fa8b714e67b0cb82a8d78e55f737ebf03e88efe4e08afd1c6e2e61414875b4b02c1d28d8490fd715f02473253ccc880cde284c6554fe5eae8cea19ad2c51b29b3a47f53c80350117e24987d6544afb4bab07bcbf7d79cfbf35005cbb9ecffc82891b39a05197b6dec0b307ff449644c0342a195cabeef03bec294eb513c537857e75d5b4d60d066eb5d26c237167eaf1718eaf4e74aa0cf9ecbf4c58fa5e909b6d39cb86883f8b1ca81632d5fe6db9f1f8b3ead791f6364778c0272a15c768d6f4c5fc4f4ec8673f102d409ff11ec96148e7a703fc31730cf04688fe56da492995ef09daa3e5beef60ecd954a0599c28bd54ef66157f874c84dba60e95672e517b3439b641c28c846826dc240209e7818e0a972defeea7b998a60f818dc710b5e1ed982f486f53854964789bec5dac970b5526c3efba8dc8d1a52f5a7f936b611a339b18b8a26210de24ea76e12f43ebecdd7c12342489da2855aee5754e312b6763b6a8d7ab730a03cec5ea593fc7eb2a45aea8625b2f009939abb45f73c308ec80118f470e8f2a1343e191066255bbffba3da9a93d260faeca7d628b155589d694344dd665","SignatureAlgorithmOID":"1.2.840.113549.1.1.5","IsCertificateAuthority":true,"SerialNumber":"610c120600000000001b","Version":3,"CertificateType":"Intermediate","IsCodeSigning":false,"IsCA":false,"TBS":{"MD5":"53c41bc1164e09e0cd1617a5bf913efd","SHA1":"93c03aac8951d494ecd5696b1c08658541b18727","SHA256":"40bddadac24dc61ca4fb5cab2a2bc5d876bc36808311039a7a3e1a4066f7489b","SHA384":"f51d4e75ba638f7314cd59b8d6d45f3b34d35ce6986e9d205cd6f333e8e8d8e9c91f636e6bc84731b6661673f40963d8"}},{"Subject":"C=US, ST=California, L=Milpitas, O=Phoenix Technology Ltd., OU=Digital ID Class 3 , Microsoft Software Validation v2, OU=CSS Core Features Development, CN=Phoenix Technology Ltd.","ValidFrom":"2006-10-17 00:00:00","ValidTo":"2007-10-17 23:59:59","Signature":"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","SignatureAlgorithmOID":"1.2.840.113549.1.1.5","IsCertificateAuthority":false,"SerialNumber":"2ca9ca93cd9b19a96ddad68aff3a668d","Version":3,"CertificateType":"Leaf (Code Signing)","IsCodeSigning":true,"IsCA":false,"TBS":{"MD5":"47b0f73f8cc709595616e0d6ae88c5db","SHA1":"83d27f045fa24c61544842dd4a9ac8759fa6900a","SHA256":"47a75a2e532e11a257ac26424155874c7254eadf8c3aa2882ebdf1c26c592db7","SHA384":"47b81b4771455e9cd188c0b7354dd8b1db838d9efa8f9019b1e8c74768c2d421118e6997bb6d025d7bcbe80851caaa2e"}}],"Signer":[{"SerialNumber":"2ca9ca93cd9b19a96ddad68aff3a668d","Issuer":"C=US, O=VeriSign, Inc., OU=VeriSign Trust Network, OU=Terms of use at https://www.verisign.com/rpa (c)04, CN=VeriSign Class 3 Code Signing 2004 CA","Version":1}]}],"Imphash":"7a4a0df0bde1f8da6547a580d5bee7c3","LoadsDespiteHVCI":"FALSE"}]}